Glassy-winged Sharpshooter Nursery Shipping Protocol
Glassy-winged SharpshooterNursery Shipping ProtocolMay 20, 2021These protocols are provided to clarify the responsibilities and procedures to be followed by CountyAgricultural Commissioners in order to certify glassy-winged sharpshooter-free nursery stockdestined to non-infested areas of California. These procedures are derived from the Pierce’sDisease Control Program Regulations (formerly known as the Emergency Regulations and theMaster Permit QC 922), including the associated compliance agreements and their exhibits.1. Nursery Evaluation by CAC:County Agricultural Commissioners (CAC) monitor and conduct the visual survey and trappingactivities of nurseries for the presence of glassy-winged sharpshooters (GWSS) to determine ifa nursery in the infested area is eligible to ship nursery stock to non-infested areas of Californiaunder:A.The Pierce’s Disease Control Program Regulations (non-infested premise nursery) or,B.The Master Permit (infested premise nursery) or,C.The GWSS Nursery Stock Approved Treatment Program (ATP) or,D.The Broker Compliance Agreement or,E.The Distribution Center Compliance Agreement.F.Qualifying nurseries shall sign a compliance agreement under the Program Regulation,Master Permit (or both i.e., multiple yards or locations), the Approved Treatment Program,Broker or Distribution Center. Information can be found at:https://www.cdfa.ca.gov/pdcp/guidelines.htmlG. Or, based on monitoring, CAC determines that a nursery is unable to qualify to ship nurserystock under A, B, C, D or E to non-infested areas because of continuous pest pressure.2. Shipping Under the Pierce’s Disease Control Program Regulations (non-infested premisenursery):For those nurseries qualified to ship nursery stock using the Pierce’s Disease Control ProgramRegulations, which are the most stringent standards, the shipments shall be accompanied by astamp or certificate, which affirms that the plants in each shipment are originating from a noninfested (GWSS-free) premise. This non-infested (GWSS-free) premise shall be determined byvisual survey and trapping. The nursery premise shall be trapped at a minimum of 1 trap perone-half acre, and not less than 2 traps per one-half acre in the staging areas.Definition: A non-infested (GWSS-free) premise is defined as a non-infested nursery. AGWSS-free premise must be free of GWSS (viable) egg masses, live nymphs, and with no morethan three adults found in the same one-half acre in a two-week period. In addition, loading docktraps must also not exceed three GWSS adults in the same one-half acre in a two-week period.If the loading dock traps exceed three GWSS adults in the same one-half acre in a two-weekperiod, the nursery shall immediately suspend all shipments to non-infested areas. A 100’ radiustreatment in/around the staging area shall be conducted with a product from the included listother than Fenpropathrin (Tame ) or Carbaryl (Sevin ) (see #7 Pesticides for Use). The nurserymay resume shipping after one successful trap cycle below the threshold under one of thefollowing options: upon removal of the suspension by the CAC, the nursery must switch over toa Master Permit compliance agreement, or, the nursery shall treat all shipments destined to noninfested areas for a minimum of 30 days. These outgoing treatments must be conducted using
Fenpropathrin (Tame ) or Carbaryl (Sevin ), label permitted. Although an outgoing inspectionby the CAC is not required during this 30 day mandatory treatment period, the treatment mustbe witnessed by the CAC. A Certificate of Quarantine Compliance (CQC)* is required and shouldcontain additional language stating that the shipper is under a mandatory 30 day treatmentprogram. The county staff shall indicate the time, date, rate and material used on the CQC. TheCQC shall expire at the end of the fifth day after being issued. *Phytosanitary Certificates maybe used for all applicable GWSS shipments in lieu of CQCs.The CAC are expected to monitor all of the above nursery activities. The stamp or certificatemust include the nursery’s compliance agreement number. For those destination countiesenforcing restrictions, the nursery must provide a Shipping Permit (Blue Tag) for each shipmentdestined to non-infested areas. They must also pre-notify destination county offices (via fax orother agreed upon method) 24 hours in advance of the arrival of the shipment. Theserequirements also apply to “will-call” orders.3. Shipping Under the Master Permit (infested premise nursery):For those nurseries qualified to ship under the Master Permit, all of the following conditions mustbe met:A. The staging area (shipment loading area) is trapped and monitored by the CAC to ensure thearea is GWSS-free. Traps must be placed at a minimum of 2 traps per one-half acre in thestaging areas. Loading dock traps must not exceed three GWSS adults in the same one-halfacre in a two-week period. If the nursery is using Fenpropathrin (Tame ) or Carbaryl (Sevin )as a foliar application on all outgoing loads containing host material, the staging area trapsmust not exceed six GWSS adults in the same one-half acre in a two-week period.If the loading dock traps exceed three GWSS adults in the same one-half acre in a two-weekperiod (or six GWSS adults in nurseries exclusively using Fenpropathrin (Tame ) or Carbaryl(Sevin ) on outgoing shipments), the nursery shall immediately suspend all shipments to noninfested areas. A 100’ radius treatment in/around the staging area shall be conducted with aproduct from the included list other than Fenpropathrin (Tame ) or Carbaryl (Sevin ) (see #7Pesticides for Use). The nursery may resume shipping after one successful trap cycle belowthe threshold.B. The nursery shall submit GWSS-free plants for inspection.C. The CAC conducts a 100% inspection of all host plants at the GWSS-free staging area.D. If the CAC finds an apparently viable GWSS life stage on any plant material, the infestedplant(s) shall be returned to the growing grounds. It is the origin county’s discretion whetherthis is the entire species, variety, block origin, or pot size. The CAC shall submit a sample ofthe GWSS for confirmation to the CAC Entomologist or the Plant Pest Diagnostics Center(PPDC). If GWSS is confirmed, action shall be taken by the nursery to mitigate the pest risk.The CAC shall make every effort to identify the growing locations of the different species ofplants, which should be rejected on the basis of a find. This allows the CAC at origin theflexibility to make decisions based on pest risk assessment regarding the nursery stock and itslocation within the nursery grounds.E. Once the plants are inspected by the CAC and found free of all GWSS life stages, the nurseryshall apply a treatment to safeguard plants from infestation prior to shipment. The treatmentshall be effective against adult and nymphal stages of GWSS (see #7 Pesticides for Use).F. The CAC issues a CQC for each shipment destined to a non-infested area. The treatmentshall be witnessed by the CAC. The county staff shall indicate the time, date, rate and materialused on the CQC. The CQC shall expire at the end of the fifth day after being issued. If theshipment contains both host and non-host plants, the entire load shall be treated as asafeguarding measure. Similarly, if a shipment destined to a non-enforcing county (Alpine, DelNorte, Inyo, Lassen, Mono, Modoc, Plumas, Sierra and Siskiyou Counties), or out of state, is
co-mingled with material destined for an enforcing county, the entire load shall be treated as asafeguarding measure.G. The nursery inspects the shipping vehicle for the presence of GWSS prior to the loading ofplants. The vehicle’s doors shall remain closed or some other method used approved by theCAC, except when plants are being loaded, to prevent the entry of GWSS adults afterinspection.H. The nursery provides a Shipping Permit (Blue Tag) for each shipment destined to non-infestedareas. They must also pre-notify destination county offices (via fax or other agreed uponmethod) 24 hours in advance of the arrival of the shipment. These requirements also apply to“will-call” orders.4. Compliance Agreement Requirements (Master Permit and Program Regulation)A.Each nursery possessing a GWSS compliance agreement shall have all growing groundswithin each respective county listed under said compliance agreement.B.All host plant material shipped to non-infested areas of the state must originate from a nursery(and/or yard) under a GWSS compliance agreement. If a nursery acquires plant material thatdoes not originate from a nursery (and/or yard) under a GWSS compliance agreement, thefollowing requirements apply:(1) Program Regulation Nurseries:If acquiring plant material from Master Permit nurseries, nurseries lacking a GWSScompliance agreement, or any other source outside of a nursery setting (e.g. harvestedproduct from homeowners or private property) then the following must occur:a)Shipper must take possession of plant material and transport to a yard undertheir existing compliance agreement.b)The plant material must be held in a quarantine area within the nursery for aperiod of 30 days. The nursery shall notify the CAC when this occurs. Theplants will be monitored using yellow sticky traps at a density of 1 trap per ½acre for a period of no less than 4 weeks. The quarantine area will be adesignated area approved by the County Agricultural Commissioner. ProgramRegulation protocols will apply to any trap finds. This area shall be trapped andmonitored for GWSS. Chemical applications with a material effective againstadult and nymphal stages of GWSS shall be applied, if necessary to eliminateall GWSS life stages (see #7 Pesticides for Use).(2) Master Permit Nurseries:If acquiring plant material from nurseries lacking a GWSS compliance agreement orany other source outside of a nursery setting (e.g. harvested product from homeownersor private property) then the following must occur:a)Shipper must take possession of plant material and transport to a yard undertheir existing compliance agreement.b)The plant material must be held in a quarantine area within the nursery for aperiod of 30 days. The nursery shall notify the CAC when this occurs. Thisarea shall be trapped and monitored for GWSS. The plants will be monitoredusing yellow sticky traps at a density of 1 trap per ½ acre for a period of no lessthan 4 weeks. The quarantine area will be a designated area approved by theCounty Agricultural Commissioner. Chemical applications with a materialeffective against adult and nymphal stages of GWSS shall be applied, ifnecessary, to eliminate all GWSS life stages (see #7 Pesticides for Use).
C.Irregular Sized (e.g. Oversized) Plant Material from Other Sources:(The following information regarding the shipment of irregular sized plant material shall beused as a guideline for certifying qualifying plant material and is at the discretion of the CAC).All host material that originates from nurseries lacking a GWSS compliance agreement or anyother source outside of a nursery setting (e.g. harvested product from homeowners or privateproperty) that is presented to the CAC for certification must be of a size and condition thatmakes a 100% visual inspection feasible. If it is determined by the CAC that a 100% visualinspection cannot be conducted, the following may occur:(1) Shipper must take possession of plant material and transport to a yard under theirexisting compliance agreement.(2) The plant material must be held in a quarantine area within the nursery for a period of30 days. The nursery shall notify the CAC when this occurs. This area shall be trappedand monitored for GWSS. Two chemical applications shall be applied, approximatelytwo weeks apart, with either Fenpropathrin (Tame ) or Carbaryl (Sevin ) during thisquarantine period. These two chemical treatments shall be monitored by the originCAC. Upon completion of the treatments, the plant material may be shipped from thenursery or added to the nursery’s existing stock. For shipments destined to noninfested counties, the origin CAC shall contact the destination CAC to confirm the plantmaterial was certified per protocol.D. With the exception of plant material mentioned in 4.C(2), use of the insecticides Fenpropathrin(Tame ) or Carbaryl (Sevin ) should be limited to safeguarding treatments of outgoing materialto prevent the possibility of GWSS insecticide resistance. Refer to #7 Pesticides for Use foralternative insecticides to maintain nursery stock pest cleanliness standards within productionareas.E. Nurseries possessing GWSS compliance agreements shall be responsible for allcontractors/subcontractors hired to represent and act on the behalf of said nursery includingpesticide applicator companies and representatives, merchandisers, trucking companies andtheir drivers. This includes training of all contractors/subcontractors on the GWSS shippingprotocols and regulations. All training records shall be maintained for a minimum of two yearsand made available to the CAC upon request.5. Destination Inspection of Nursery Stock:Note: Inspection of arriving nursery stock shipments at destination is at the discretion of andconducted by the destination CAC.A.When a nursery stock shipment arrives at a nursery, verification of the paperwork is essential.(1)(2)Determine if the shipping nursery is under a Master Permit or Program Regulationcompliance agreement.a)If it is coming from a Master Permit nursery, verify that the CQC and Blue Tag iswith the shipment.b)If coming from a Program Regulation nursery, verify that it has a stamp orcertificate (including the compliance agreement number) and a Blue Tag.c)If shipment is from a Program Regulation nursery under a mandatory 30 daysafeguarding treatment program, verify that the CQC and Blue Tag is present.If no certification is present and the shipment is from a partially infested county, checkto see if the shipping nursery is located outside of the infested area. If it is, then theCQC, stamp (or certificate), or Blue Tag is not required. If the shipment is from aninfested area, the county at destination should call the PD/GWSS Nursery Programrepresentative or origin CAC to inquire about the shipment paperwork. If the shipping
nursery cannot immediately produce the certification paperwork; the destination countymay choose to reject the entire shipment (return to origin).(3)B.If the shipment consists of all non-host material, then the nursery is allowed to ship withtheir nursery stock certificate. No Blue Tag, stamp, or CQC is required. (Since no BlueTag is required, no prior notification is required).If live GWSS adults or nymphs are found in the truck, the truck should be closed, and theentire shipment should be rejected and returned to origin.(1)If the shipment was a multiple county drop, notify the other CAC’s.(2)If live adults fly into the nursery from the shipment, then see below.C. If live adults or nymphs are found while inspecting an off-loaded nursery stock shipment, thefollowing should be done:(1)Collect as many of the adults or nymphs as possible from the shipment and submit thesample to CDFA’s PPDC for confirmation.(2)Isolate the shipment and immediately apply a chemical treatment (see #7 Pesticidesfor Use) to all the plant material in the shipment. The treatment must be effectiveagainst adult and nymphal stages of GWSS.(3)The receiving CAC may opt to destroy the entire shipment or return the shipment toorigin. A rejection should be issued for the entire shipment.D. If during the inspection of an incoming nursery stock shipment an apparently viable egg massof GWSS is found, the following should be done:(1)Finish inspecting the entire shipment.(2)Secure suspect GWSS sample(s) from the shipment and submit to the CDFA’s PPDCfor confirmation.(3)Put the particular plant material (may be entire species, variety, block origin, or potsize) on hold (off-sale to the public) and safeguard until the sample is confirmed. Thedestination CAC may choose to consult with the origin CAC and/or CDFA to helpdetermine what the affected plant material in the load is.(4)If the PPDC determines the sample is a non-viable egg mass, then release the heldplant material.Note: Only shipments with PPDC confirmed viable GWSS life stages should be rejected(treated/reconditioned, returned, or destroyed.) It has been determined that freshparasitized egg masses may be considered as “viable” due to the fact that not all eggsmay be parasitized.(5)If the sample is a viable egg mass, then the following options are available:a)The affected host material is rejected. Affected host material may be entirespecies, variety, block origin, or pot size depending on the perceived risk andis at the discretion of the destination CAC. Information provided by the originCAC and/or CDFA may assist the receiving counties with risk evaluation.i) The affected host material is returned to origin.ii) The affected host material is destroyed at destination.iii) The affected host material is held and treated (if CAC feels the pest risk canbe mitigated). This can either be a chemical treatment to eliminate GWSS(see #7 Pesticides for Use) or removal of all leaves (defoliate) to removeegg masses and disposal in a manner that renders all life stages non-viable.
E.If one or more adult GWSS or nymph are found in a nursery and the find can be directlylinked to a recent shipment, then:(1)Notify GWSS program(2)Notify origin CAC6. Follow-Up by Origin CAC when a confirmed life stage of GWSS is found at destination:A.B.If the nursery is operating under the non-infested (GWSS-free) premise of the Pierce'sDisease Control Program regulations, the following requirements apply:(1)The nursery shall immediately discontinue shipments that include the affected plantmaterial (may be entire species, variety, block origin, or pot size, as determined byorigin CAC). The nursery shall not ship affected material until cleared by the originCAC.(2)The origin CAC shall survey the nursery grounds to assess pest risk.(3)The origin CAC shall check nursery traps and review treatment records.(4)The nursery shall conduct treatment(s) in a 100’ radius around affected host materialwith a product from the included list (see #7 Pesticides for Use).(5)The origin CAC shall re-survey affected plant material after treatment(s).(6)The nursery must switch over to a Master Permit compliance agreement, or, thenursery is required to treat all shipments destined to non-infested areas for a minimumof 30 days. These outgoing treatments must be conducted using Fenpropathrin(Tame ) or Carbaryl (Sevin ), label permitted. Although an outgoing inspection bythe CAC is not required during this 30 day mandatory treatment period, the treatmentmust be witnessed by the CAC. A CQC is required and should contain additionallanguage stating that the shipper is under a mandatory 30 day treatment program.The county staff shall indicate the time, date, rate and material used on the CQC.The CQC shall expire at the end of the fifth day after being issued. If the shipmentcontains both host and non-host plants, the entire load shall be treated as asafeguarding measure. Similarly, if a shipment destined to a non-enforcing county(Alpine, Del Norte, Inyo, Lassen, Mono, Modoc, Plumas, Sierra and SiskiyouCounties), or out of state, is co-mingled with material destined for an enforcing county,the entire load shall be treated as a safeguarding measure. It is at the discretion ofthe origin CAC whether the nursery may revert back to their original ProgramRegulation status after 30 days.(7)All information regarding suspensions of shipping privileges or specific plant speciesshall be put on the non-public (password protected) portion of the GWSS web site at:https://www.cdfa.ca.gov/pdcp; General Info; County Users; GWSS Bulletin Board bythe origin CAC. Destination CAC shall also use this site to report any finds madeduring destination inspection. Information regarding the lifting of suspensions shallalso be indicated on the bulletin board at the time they occur.If the nursery is operating under the Master Permit (infested premise nursery), the followingrequirements apply:(1)The nursery shall immediately discontinue shipments that include the affectedplant material (may be entire species, variety, block origin, or pot size, as determinedby origin CAC). The nursery shall not ship affected material until cleared by the originCAC.(2)The origin CAC shall survey the nursery grounds to assess pest risk and compliancewith nursery stock pest cleanliness standards.
(3)The origin CAC shall check staging area traps and review treatment records.(4)The nursery shall conduct, at minimum, one chemical treatment of all affected hostmaterial with a product from the included list (see #7 Pesticides for Use).(5)All information regarding suspensions of shipping privileges or specific plant speciesshall be put on the GWSS web site bulletin board by the origin CAC. DestinationCAC may also use this site to report any finds made during destination inspection.Information regarding the lifting of suspensions may also be indicated on the bulletinboard at the time they occur.7. Pesticides for Use Against Glassy-winged Sharpshooter:A.The nursery will ensure all management practices and mitigation measures are consistentwith the California Department of Food and Agriculture’s (CDFA) Statewide Pest PreventionProgram Final Programmatic Environmental Impact Report. Fenpropathrin (Tame ) orCarbaryl (Sevin ) (as a foliar application) is recommended for use on nursery stock movingout of the infested area based on laboratory and field trial efficacy studies. The followingpesticides can be used for control of the glassy-winged sharpshooter in nurseries:Active lupyradifurone pridcyfluthrincyfluthrin/imidaclopridAcephate 97UPAdmire Pro *Alias 4F *Altus Assail 30 SG Assail 70 WP Astro Baythroid XL CoreTect *Decathlon 20 WPDiscus Marathon II Greenhouse andNursery InsecticideMavrik Aquaflow Orthene 97Perm-UP 3.2 ECQuali-Pro Imidacloprid 2F Safari 20 SGSevin SL Talstar S Select Tame 2.4 EC Spray Triact 70 **Tristar 30 SGTristar 8.5 nneem oilacetamipridacetamiprid*These items can be used in nurseries to control GWSS, however may not be used as a safeguarding (certification) treatment.**Triact 70 can only be used as a safeguarding treatment for loads that contain organic or edible plant material that cannot betreated with one of the other products listed above. It cannot be used as a hold or quarantine response treatment within theloading dock or growing grounds with the exception of plant material that cannot be treated with one of the other products listedabove.
As provided by Section 3651 of the Pierce’s Disease Control Program (page 454.1 of thePlant Quarantine Manual), CDFA has allowed Napa and Sonoma Counties to establishvariations from the standards set forth in the PDCP regulations. Included in these variationsis the requirement of Fenpropathrin (Tame ) or Carbaryl (Sevin ) as a foliar application ofhost plant material coming from infested premise nurseries destined to Napa or SonomaCounties.B.The criteria for pesticide selection by an individual grower or nursery will be dependent ontheir specific circumstances of harvest, worker re-entry, and/or shipment. Pesticides shouldbe used according to EPA registration and label directions.
May 20, 2021 · may resume shipping after one successful trap cycle below the threshold under one of the following options: upon removal of the suspension by the CAC, the nursery must switch over to a Master Permit compliance agreement, or, the nursery shall treat all shipments d
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